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引言巴西橡胶是尼日利亚当前四大出口作物之一。目前,尼日利亚大胶园或小胶园所采用的种植材料,主要是马来西亚无性系和用魏克汉采集的种子繁育出的、未经选择的老实生树;尼日利亚橡胶研究所向种植者推荐使用的新无性系,是以引自马来西亚的 RRIM501,RRIM 600和印尼的GT1等无性系作为杂交亲本而培育出来的。现有资料表明,上述推广使用的无性系遗传基础狭窄,以它们为育种材料,就不能再象以往那样成功地进一步改良种植材料。因此,重要的是寻求新的材料以扩
Introduction Brazilian rubber is one of Nigeria’s current four major export crops. At present, the planting materials used in the large rubber garden or small rubber garden in Nigeria are mainly the unselected eucalyptus trees of the Malaysian clones and the seeds collected from Weikehan; the recommended by the Nigerian Rubber Institute to growers Clones are derived from clones derived from Malaysia’s RRIM501, RRIM600 and Indonesia’s GT1 clonal hybrids. Available information shows that the clonal genetic basis for the above extension is narrow and that they can not be used as breeding materials to further improve planting materials as they have done before. Therefore, it is important to seek new materials to expand